Tony,
If possible clamp the part to a piece of wood before drilling. The wood will
allow
the bit to exit without tearing the aluminum.
Jim Brown
N398JB
Flying-500+ hr.
Tony Renshaw wrote:
>
> Gidday,
> I forgot to mention, I am using a torque"e" hand drill. Too much rpm and "if
it
> catches I am in trouble". Too little rpm and it catches straight away. Can I
> file the thread flat, parrallel to the long axis of the drill bit, a bit like
a
> perspex drill. I am drilling soft aluminium.
> Reg
> Tony Renshaw
>
> Can anyone tell me a quick tip to stop drill bits catching when opening up
> metal holes to a larger diameter????
>
> Reg
> Tony Renshaw
> Sydney Australia
>
> Classic 236 B.B. Taildragger (possibly convertible)
> Tail, Wings, Ailerons, Flaps Complete and Connected
> Lower Fuse in Jig, Tail Torque Tube installed
> Mass Balance assembly installed and deflections sorted
> Intended Engine: 912S or a "turboed single rotor rotary, when I am dreaming"
> Instrumentation: Undecided
>
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